BOTHBOPONEBA. 97 



angles of the head rounded. Thorax massive, as broad in front as 

 the head, convex ; the apical truncated face of the metanoturn 

 concave, smooth and shining, and strongly margined above and on 

 the sides ; legs opaque, densely pilose and pubescent. Node of 

 the pedicel about twice as broad as long, convex and rounded 

 above, the spinous processes on the posterior margin above 

 irregular, not very acute ; the posterior face of the node deeply 

 concave, smooth and shining ; abdomen very massive, cylindrical, 

 thfe constriction between the basal two segments well marked. 



Length, $ 13-15 rum. 



Hob. Himalayas from the Siwaliks to Assam, and up to 4000 ft. 

 (Smythies) ; Bengal (Rothney) ; Western India, Kanara to 

 Malabar ( Wroughton) Ceylon, Kandy (Yerbury) ; and throughout 

 Burma and Tenasserim (Bingham). 



117. Bothroponera bispinosa, Smith (Pachvchondyla), Cat. vi, 1858, 

 p. 107, ; Forel, Jour. Bomb. N. H.' Soc. xiii (1900), pp. 323 

 &326, . 



. In colour and sculpture entirely resembling B. rufipes, 

 Jerdon. but larger, and the nietauotum armed on each side at the 



Fig. 51. Bothroponera bispinosa, 



posterior end of the basal portion with a subtriangular flat blunt 

 spine pointing backwards and upwards. 



Length, $ 16-18 mm. 



Hub. Recorded from the Siwaliks (Rogers); Assam (Smythies); 

 Burma, Mayinyo, 3000 ft., Katha (Bingham) ; Tenasserim {Hodg- 

 son), Karen hills (Fea). 



This species and B. rufipes when picked up or disturbed emit a 

 thick white frothy liquid from their mouths with an overpowering 

 smell of formic acid. 



It has been suggested, I believe by Professor Emery, that the 

 of B. ntfipes is dimorphic, and that B. bispinosa is one of the 

 forms. I may mention that I found two nests at Maymyo, not 

 10 yards from one another, one of which contained all B. rufipes, 

 the'other all B. bispinosa. Both nests were under fallen trees. I 

 found no winged form in either nest. 



118. Bothroponera tesserinoda, Mayr (Ponera), Verh. zool-bot. Ges. 

 Wien, xxviii (1878), pp. 661 & 663, ; Forel, Jour. Bomb. N. H. 

 Soc. xiii (1900), pp. 323 & 325, rf. 



. Dull black, subopaque or slightly shining ; mandibles, 

 antennae and legs castaneous red, the scape of the antennae, the 

 VOL. u. H 



